#include <stdio.h>

int main()
{
	float vf = 1.2;
	float vb = 3.0;
	float tf = 0;
	float tb = 0;
	int s = 0;
	
	scanf("%d",&s);
	tb = s/vb +50;
	tf = s/vf;
	if(tb>tf)
	 printf("Walk");
	else if(tb == tf)
	 printf("All");
	else
	 printf("Bike");
	
	
	return 0;
}
